Question

Ram went to a shop to buy 50 kg of rice. He buys two kinds of rice which cost him Rs. 4.50 per kg and Rs. 5.00 per kg. He spends a total of Rs. 240. What was the quantity of rice bought which cost him Rs. 4.50 per kg.

• A. 25 kg
• B. 30 kg
• C. 20 kg
• D. None of these

Answer 1

The Correct Option is C

Let's take the quantity of Rs. \(4.50\) rice bought to be \(x\) kgs.
From the question, we know that
\(4.5x+5(50-x)=240\)
\(4.5x+250-5x=240\)
After solving the above equation, we get
\(250-0.5x=240\)

\(x=\frac{-10}{-0.5}\)

\(x=20\) kgs
The correct option is (C)